What does 5* 10 mean at the gate of Aluminum Art Institute?

Length times thickness. Aluminum alloy flat door, aluminum has the thickness of 0.8 mm, 1.0 mm, 1.2 mm, etc. 0: 8 is too thin to be used for a long time. Aluminum art door is a door made of aluminum as the main material and processed by careful technology, which is generally used as a courtyard door. The biggest feature of aluminum art door is its exquisite shape and strong plasticity. Can be processed into various shapes as required, and then decorated, the appearance is very elegant.